Pre-Weld Demagnetization

Pre-Weld Demagnetization of the ends of Line Pipe is necessary as pipe, more often than not, is magnetized when it is strung out along the right-of-way. Western Instruments Demag System is based on our well proven WD-Series Magnetizing / Demagnetization Coils. The system consists of a standard 1 ton truck, a light utility crane (picker), a generator, and the necessary sizes of WD-Series Coils. All components are readily available.

WD-Series Coils are currently available in 7 sizes (8 5/8”, 10 ¾”, 14”, 16”,18”, 25” and 32” ID). Once the vehicle is positioned, at the pipe ends, positioning of the Coil and Demagnetization takes less than 2 minutes per end. The ends remain demagnetized, for well over 12 hours, to an acceptable level of +/-2 Gauss